Technical Analysis of Diffused Silicon Hirschmann Pressure Sensors

In the field of industrial automation, the 7MF-MF1564 pressure transmitter, as a representative model of diffused silicon Hirschmann pressure sensors, directly affects system stability through its performance and selection. This article will compare and analyze the differentiated advantages of different models in the 7MF series from the perspectives of technical parameters, application scenarios, and customization requirements, helping technical evaluators accurately match project needs.

I. Comparison of Technical Performance

The 7MF-MF1564 pressure transmitter adopts diffused silicon sensing technology and combines it with the Hirschmann interface standard, delivering outstanding performance in accuracy class (±0.1%FS), long-term stability (<0.1%/year), and media compatibility (316L stainless steel isolation diaphragm). Compared with the MF1566 in the same series, the MF1564 has an overload capacity increased to 200%, making it more suitable for high-pressure fluctuation scenarios such as petrochemicals; while the MF1567 adds HART protocol support to meet the remote diagnostics needs of smart factories.

II. Application Scenario Selection Guide

For high-temperature media in the metallurgical industry (such as molten metal pipelines), it is recommended to choose the enhanced heat-sink version of the 7MF-MF1564; while in the food and pharmaceutical fields, the MF1566 with hygienic design (with 3A certification) should be prioritized. In flow control systems, when it needs to be used together with domestic KQ-LDBE-L pipeline intelligent electromagnetic flowmeter, the multi-protocol compatibility of the MF1567 can simplify system integration.

III. Common Misunderstandings in Model Selection

1. Ignoring the risk of media crystallization: in chemical slurry measurement, failing to select a model with diaphragm self-cleaning function will lead to measurement drift; 2. Excessively pursuing high accuracy: for scenarios such as municipal water supply, an economical solution with ±0.5% accuracy is often more cost-effective; 3. Confusing interface standards: there is an essential difference in waterproof rating (IP67 vs IP65) between Hirschmann connectors and ordinary M12 interfaces.

IV. Customized Solutions

Xi'an Shenghongchuang Instrument Co., Ltd. provides full-chain customization services from sensor chips to housing materials. For example, for offshore platform projects, it developed the 7MF-MF1564-X series, which successfully passed DNV-GL certification through a titanium alloy housing + triple sealing design. Its SMT production line can ensure the consistency error of mass-produced products is <0.05%.

Why Choose Us

As a national high-tech enterprise, we hold 22 patents in the field of pressure sensing, and all products have passed ISO9001:2015 and SIL2 certification. For special working conditions, our technical team can provide full-process support from selection calculation to installation and commissioning, helping you avoid compatibility issues of common models such as the PTB-PTB505 pressure transmitter.